Hello All.
I have a question about a button box I'd like to make for sim racing. I have studied a few different threads about the same topic, but I have not found an answer for my question.
So, the basis for my project is a tutorial from AMStudio. I purchased the code from them which works. I want to make a couple of changes though. I would like to change one (or more) of the momentary switches used in this box out for latching switches to make the box more realistic. As an example I will use the first switch, which I will use for ignition on/off. Ignition on -> switch latched high, ignition off -> switch latched low.
I got it all working the way it should. I found a response from @johnwasser, who mentioned not to use button 0, so I changed the numbering to start with button 1. My question is, by doing this, do I now have the change my button box from a 32 button box to a 31 button box? When I plug in my little test rig, it still show button 0 - 31, with button 0 not responding (which is correct).
Here is my code;
//BUTTON BOX
//USE w ProMicro
//Tested in WIN10 + Assetto Corsa
//AMSTUDIO
//20.8.17
#include <Keypad.h>
#include <Joystick.h>
#include <DebugUtils.h>
#define DEBUG
#define ENABLE_PULLUPS
#define NUMROTARIES 4
#define NUMBUTTONS 24
#define NUMROWS 5
#define NUMCOLS 5
byte buttons[NUMROWS][NUMCOLS] = {
{1,2,3,4,5},
{6,7,8,9,10},
{11,12,13,14,15},
{16,17,18,19,20},
{21,22,23,24},
};
struct rotariesdef {
byte pin1;
byte pin2;
int ccwchar;
int cwchar;
volatile unsigned char state;
};
rotariesdef rotaries[NUMROTARIES] {
{0,1,25,26,0},
{2,3,27,28,0},
{4,5,29,30,0},
{6,7,31,32,0},
};
#define DIR_CCW 0x10
#define DIR_CW 0x20
#define R_START 0x0
#ifdef HALF_STEP
#define R_CCW_BEGIN 0x1
#define R_CW_BEGIN 0x2
#define R_START_M 0x3
#define R_CW_BEGIN_M 0x4
#define R_CCW_BEGIN_M 0x5
const unsigned char ttable[6][4] = {
// R_START (00)
{R_START_M, R_CW_BEGIN, R_CCW_BEGIN, R_START},
// R_CCW_BEGIN
{R_START_M | DIR_CCW, R_START, R_CCW_BEGIN, R_START},
// R_CW_BEGIN
{R_START_M | DIR_CW, R_CW_BEGIN, R_START, R_START},
// R_START_M (11)
{R_START_M, R_CCW_BEGIN_M, R_CW_BEGIN_M, R_START},
// R_CW_BEGIN_M
{R_START_M, R_START_M, R_CW_BEGIN_M, R_START | DIR_CW},
// R_CCW_BEGIN_M
{R_START_M, R_CCW_BEGIN_M, R_START_M, R_START | DIR_CCW},
};
#else
#define R_CW_FINAL 0x1
#define R_CW_BEGIN 0x2
#define R_CW_NEXT 0x3
#define R_CCW_BEGIN 0x4
#define R_CCW_FINAL 0x5
#define R_CCW_NEXT 0x6
const unsigned char ttable[7][4] = {
// R_START
{R_START, R_CW_BEGIN, R_CCW_BEGIN, R_START},
// R_CW_FINAL
{R_CW_NEXT, R_START, R_CW_FINAL, R_START | DIR_CW},
// R_CW_BEGIN
{R_CW_NEXT, R_CW_BEGIN, R_START, R_START},
// R_CW_NEXT
{R_CW_NEXT, R_CW_BEGIN, R_CW_FINAL, R_START},
// R_CCW_BEGIN
{R_CCW_NEXT, R_START, R_CCW_BEGIN, R_START},
// R_CCW_FINAL
{R_CCW_NEXT, R_CCW_FINAL, R_START, R_START | DIR_CCW},
// R_CCW_NEXT
{R_CCW_NEXT, R_CCW_FINAL, R_CCW_BEGIN, R_START},
};
#endif
byte rowPins[NUMROWS] = {21,20,19,18,15};
byte colPins[NUMCOLS] = {14,16,10,9,8};
Keypad buttbx = Keypad( makeKeymap(buttons), rowPins, colPins, NUMROWS, NUMCOLS);
Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,
JOYSTICK_TYPE_JOYSTICK, 32, 0,
false, false, false, false, false, false,
false, false, false, false, false);
void setup()
{
Joystick.begin();
rotary_init();
Serial.begin(9600); // Open Serial Port for debugging
Serial.print("********** - System Initialized - **********"); // Print message to user
}
void loop()
{
CheckAllEncoders();
CheckAllButtons();
}
void CheckAllButtons(void) {
if (buttbx.getKeys())
{
for (int i=0; i<LIST_MAX; i++)
{
if ( buttbx.key[i].stateChanged )
{
switch (buttbx.key[i].kstate) {
case PRESSED:
Serial.println(buttbx.key[i].kcode);
if (buttbx.key[i].kcode == 0)
{
Joystick.setButton(buttbx.key[i].kchar, 1);
delay(50);
Joystick.setButton(buttbx.key[i].kchar, 0);
}
else
{
Joystick.setButton(buttbx.key[i].kchar, 1);
}
break;
case HOLD:
Serial.println(buttbx.key[i].kcode);
if (buttbx.key[i].kcode != 0)
{
Joystick.setButton(buttbx.key[i].kchar, 1);
break;
}
case IDLE:
case RELEASED:
Joystick.setButton(buttbx.key[i].kchar, 0);
break;
}
}
}
}
}
void rotary_init() {
for (int i=0;i<NUMROTARIES;i++) {
pinMode(rotaries[i].pin1, INPUT);
pinMode(rotaries[i].pin2, INPUT);
#ifdef ENABLE_PULLUPS
digitalWrite(rotaries[i].pin1, HIGH);
digitalWrite(rotaries[i].pin2, HIGH);
#endif
}
}
unsigned char rotary_process(int _i) {
unsigned char pinstate = (digitalRead(rotaries[_i].pin2) << 1) | digitalRead(rotaries[_i].pin1);
rotaries[_i].state = ttable[rotaries[_i].state & 0xf][pinstate];
return (rotaries[_i].state & 0x30);
}
void CheckAllEncoders(void) {
for (int i=0;i<NUMROTARIES;i++) {
unsigned char result = rotary_process(i);
if (result == DIR_CCW) {
Joystick.setButton(rotaries[i].ccwchar, 1); delay(50); Joystick.setButton(rotaries[i].ccwchar, 0);
};
if (result == DIR_CW) {
Joystick.setButton(rotaries[i].cwchar, 1); delay(50); Joystick.setButton(rotaries[i].cwchar, 0);
};
}
}
Thanks!